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Y om T o v Sheni Yom Tov Sheni - Chidushei Torah@NDS

Y om T o v Sheni Yom Tov Sheni - Chidushei Torah@NDS

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setting the correct day of the festival) fall during times of the year<br />

when rain is rare and evening visibility is good.<br />

Table 1 summarizes the similarities between these c<strong>om</strong>munication<br />

systems.<br />

Table 1 C<strong>om</strong>parison between Torch and Digital Wireless<br />

C<strong>om</strong>munication Methods<br />

Torch Method C<strong>om</strong>munication Digital Wireless Network<br />

C<strong>om</strong>munication<br />

Several teams with torches on<br />

high mountain-tops.<br />

Message transmitted through air<br />

to recipient via light emanating<br />

fr<strong>om</strong> a torch.<br />

Team 1 moves torch up and<br />

down to signal team 2 on next<br />

hill.<br />

Team 2 sees torch light fr<strong>om</strong><br />

Team 1.<br />

Team 2 lights their torch and<br />

moves it up and down in a<br />

distinct manner to acknowledge<br />

Team 1’s signal.<br />

Team 2 moves its torch up and<br />

down to signal Team 3.<br />

Several c<strong>om</strong>puters are ‘listeners’<br />

on a network.<br />

Message transmitted through air<br />

to recipient in data packets.<br />

C<strong>om</strong>puter 1 performs<br />

handshaking with C<strong>om</strong>puter 2<br />

that is listening for packet arrival.<br />

C<strong>om</strong>puter 2 accepts packet<br />

fr<strong>om</strong> C<strong>om</strong>puter 1.<br />

C<strong>om</strong>puter 2 sends an<br />

acknowledgment packet back<br />

to C<strong>om</strong>puter 1 to say that it<br />

successfully received its data.<br />

C<strong>om</strong>puter 2 forwards the data<br />

packet to C<strong>om</strong>puter 3.<br />

Improving Security of Transmission through<br />

Messengers<br />

In c<strong>om</strong>parison to torches, the method of dispatching agents to<br />

broadcast the date of the new month can be viewed as a much more<br />

robust, secure form of c<strong>om</strong>munication. By utilizing messengers,<br />

the Beit Din had the discretion to appoint people known to be<br />

trustworthy in order to prevent Kutim or others fr<strong>om</strong> giving the<br />

wrong information. The obvious price for this more secure method<br />

of transmission was speed. The speed was limited to the distance a<br />

15<br />

<strong>Chidushei</strong> Torah @ NDS

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